PREACHIN' BLUES
by Edward James "Son" House Jr. (1930?)

https://it.wikipedia.org/wiki/Robert_Johnson
https://www.youtube.com/watch?v=cEWiJR9qeoc Larkin Poe
https://www.youtube.com/watch?v=omnxHDJOakc Tedeschi Trucks Band - Preachin' Blues (with Warren Haynes)

---